diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index f8ca2e27b35eb..cc8310a30ddad 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -3330,6 +3330,17 @@
     <!-- Controls the size of the back gesture inset. -->
     <dimen name="config_backGestureInset">0dp</dimen>
 
+    <!-- Array of values used in Gesture Navigation settings page to reduce/increase the back
+     gesture's inset size. These values will be multiplied into the default width, read from the
+     gesture navigation overlay package, in order to create 4 different sizes which are selectable
+     via a slider component. -->
+    <array name="config_backGestureInsetScales">
+        <item>0.75</item>
+        <item>1.00</item>
+        <item>1.33</item>
+        <item>1.66</item>
+    </array>
+
     <!-- Controls whether the navbar needs a scrim with
          {@link Window#setEnsuringNavigationBarContrastWhenTransparent}. -->
     <bool name="config_navBarNeedsScrim">true</bool>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 5e0a789780209..5fe7da3c3ba17 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -2818,6 +2818,7 @@
   <java-symbol type="bool" name="config_navBarNeedsScrim" />
   <java-symbol type="bool" name="config_allowSeamlessRotationDespiteNavBarMoving" />
   <java-symbol type="dimen" name="config_backGestureInset" />
+  <java-symbol type="array" name="config_backGestureInsetScales" />
   <java-symbol type="color" name="system_bar_background_semi_transparent" />
   <java-symbol type="bool" name="config_showGesturalNavigationHints" />